| 摘要 |
The present invention relates to an ashing plant which condenses precious metal from fluorine-containing materials, and includes a heat treatment chamber (1) which has a nonflammable insulating lining inside, and an exhaust gas cleaning system. The nonflammable insulating lining is resistant to hydrofluoric acid. The exhaust gas cleaning system comprises at least one heat post-incineration chamber (2), at least one pair of acid washers (3, 4), and at least one alkali washer (5). |
